EP 0287235 A2 19881019 - Pickup actuator for disk-type media.
Title (en)
Pickup actuator for disk-type media.
Title (de)
Pick-up Steller für scheibenförmige Datenträger.
Title (fr)
Dispositif de déplacement de bras de lecture pour média sous forme de disques.
Publication
Application
Priority
JP 9390787 A 19870415
Abstract (en)
A pickup actuator includes a slider (43), an optical pickup unit (30), and at least one suspension arm (44) extending from the slider for suspending the pickup unit. The pickup unit includes at least one bobbin (31,32) surrounding a yoke plate (14,15), upon which a first coil (31A,32A) is wound, and further transversely mounted coils (31X,31Y; 32X,32Y) attached to the first coil. The coils collectively control movement of the pickup unit (30) in tracking, focusing and tilt directions thereof. A further bobbin (36) connected to the slider (43) surrounds the yoke plate (14) and includes a further coil (36A) wound thereabout for driving the slider and the pickup unit radially of an associated optical disk (20).
IPC 1-7
IPC 8 full level
G11B 7/085 (2006.01); G11B 7/09 (2006.01)
CPC (source: EP US)
G11B 7/08582 (2013.01 - EP US); G11B 7/093 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0287235 A2 19881019; EP 0287235 A3 19890315; EP 0287235 B1 19920624; DE 3872293 D1 19920730; DE 3872293 T2 19921203; JP S63257927 A 19881025; US 4942562 A 19900717; US 5043964 A 19910827
DOCDB simple family (application)
EP 88302779 A 19880329; DE 3872293 T 19880329; JP 9390787 A 19870415; US 17107388 A 19880321; US 52041390 A 19900508